(often styled as YL105) typically refers to a specific breakout board adapter designed for the nRF24L01+ wireless transceiver module
Stop fiddling with external pull-ups and faulty libraries. Download the original YL105 datasheet, follow the timing diagrams above, and build humidity logging that just works.
Part 6: Common Pitfalls (What the Datasheet Doesn't Explicitly Say)
- 2x Arduino Boards (one Transmitter, one Receiver).
- 2x YL-105 Modules.
- Jumper wires.
Scour any YL-105 datasheet, and you will see a proud block diagram showing the PC817 optocoupler straddling the "input" and "output" sides. The implication? Galvanic isolation. This is the most dangerous half-truth in the documentation.
While there isn't a single "official" datasheet for a component explicitly named "YL105," this identifier frequently appears in the context of LED Driver ICs Power Management modules often found in consumer electronics.
The most common search comparison is YL105 vs. DHT11. On paper, they look identical. In practice, the YL105 wins for three reasons.
void loop() // Send a test message every second mySerial.println("Hello from YL-105!"); Serial.println("Message Sent"); delay(1000);